Psionic characters and creatures manifest powers. Whether they cost power points when manifest by a psionic character, or are manifested as psi-like abilities, powers’ effects remain the same. The process of manifesting a power is akin to casting a spell, but with significant differences.

Choosing a Power

First you must choose which power to manifest. You can select any power you know, provided you are capable of manifesting powers of that level or higher. To manifest a power, you must pay power points, which count against your daily total. You can manifest the same power multiple times if you have points left to pay for it.

To manifest a power, you must concentrate. If something threatens to interrupt your concentration while you’re manifesting a power, you must succeed on a Concentration check or lose the power points without manifesting the power. The more distracting the interruption and the higher the level of the power that you are trying to manifest, the higher the DC. (Higher-level powers require more mental effort.)

Injury

Getting hurt or being affected by hostile psionics while trying to manifest a power can break your concentration and ruin a power. If you take damage while trying to manifest a power, you must make a Concentration check (DC 10 + points of damage taken + the level of the power you’re manifesting). The interrupting event strikes during manifestation if it occurs between when you start and when you complete manifesting a power (for a power with a manifesting time of 1 round or longer) or if it comes in response to your manifesting the power (such as an attack of opportunity provoked by the manifesting of the power or a contingent attack from a readied action).

If you are taking continuous damage half the damage is considered to take place while you are manifesting a power. You must make a Concentration check (DC 10 + 1/2 the damage that the continuous source last dealt + the level of the power you’re manifesting).

If the last damage dealt was the last damage that the effect could deal then the damage is over, and it does not distract you.

Repeated damage does not count as continuous damage.

Power

If you are affected by a power while attempting to manifest a power of your own, you must make a Concentration check or lose the power you are manifesting. If the power affecting you deals damage, the ConcentrationDC is 10 + points of damage + the level of the power you’re manifesting. If the power interferes with you or distracts you in some other way, the ConcentrationDC is the power’s save DC + the level of the power you’re manifesting. For a power with no saving throw, it’s the DC that the power’s saving throw would have if a save were allowed.

Grappling or Pinned

To manifest a power while grappling or pinned, you must make a Concentration check (DC 20 + the level of the power you’re manifesting) or lose the power.

Vigorous Motion

If you are riding on a moving mount, taking a bouncy ride in a wagon, on a small boat in rough water, belowdecks in a storm-tossed ship, or simply being jostled in a similar fashion, you must make a Concentration check (DC 10 + the level of the power you’re manifesting) or lose the power.

Violent Motion

If you are on a galloping horse, taking a very rough ride in a wagon, on a small boat in rapids or in a storm, on deck in a storm-tossed ship, or being tossed roughly about in a similar fashion, you must make a Concentration check (DC 15 + the level of the power you’re manifesting) or lose the power.

Violent Weather

If you are in a high wind carrying blinding rain or sleet, the DC is 5 + the level of the power you’re manifesting. If you are in wind-driven hail, dust, or debris, the DC is 10 + the level of the power you’re manifesting. In either case, you lose the power if you fail the Concentration check. If the weather is caused by a power, use the rules in the Power subsection above.

If you want to manifest a power without provoking attacks of opportunity, you need to dodge and weave. You must make a Concentration check (DC 15 + the level of the power you’re manifesting) to succeed. You lose the power points without successful manifestation if you fail.

Entangled

If you want to manifest a power while entangled in a net or while affected by a power with similar effects you must make a DC 15 Concentration check to manifest the power. You lose the power if you fail.

Manifester Level

The variables of a power’s effect often depend on its manifester level, which is equal to your psionic class level. A power that can be augmented for additional effect is also limited by your manifester level (you can’t spend more power points on a power than your manifester level). See Augment under Descriptive Text, below.

In the event that a class feature or other special ability provides an adjustment to your manifester level, this adjustment applies not only to all effects based on manifester level (such as range, duration, and augmentation potential) but also to your manifester level check to overcome your target’s power resistance and to the manifester level used in dispel checks (both the dispel check and the DC of the check).

Power Failure

If you try to manifest a power in conditions where the characteristics of the power (range, area, and so on) cannot be made to conform, the manifestation fails and the power points are wasted.

Special Power Effects

Attacks

Some powers refer to attacking. All offensive combat actions, even those that don’t damage opponents, such as disarm and bull rush, are considered attacks. All powers that opponents can resist with saving throws, that deal damage, or that otherwise harm or hamper subjects are considered attacks. Astral constructand similar powers are not considered attacks because the powers themselves don’t harm anyone.

Bonus Types

Many powers give creatures bonuses to ability scores, Armor Class, attacks, and other attributes. Each bonus has a type that indicates how the power grants the bonus. The important aspect of bonus types is that two bonuses of the same type don’t generally stack. With the exception of dodge bonuses, most circumstance bonuses, and racial bonuses, only the better bonus works (see Combining Psionic and Magical Effects, below). The same principle applies to penalties—a character taking two or more penalties of the same type applies only the worst one.

Bringing Back the Dead

Of all the psionic powers, only reality revision has the ability to restore slain characters to life. Various psionic powers, such as reality revision and psionic revivify, have the ability to restore slain characters to life. When a living creature dies, its soul departs the body, leaves the Material Plane, travels through the Astral Plane, and goes to abide on the plane where the creature’s deity resides. If the creature did not worship a deity, its soul departs to the plane corresponding to its alignment. Bringing someone back from the dead means retrieving his or her soul and returning it to his or her body.

Level Loss

The passage from life to death and back again is a wrenching journey for a being’s soul. Consequently, any creature brought back to life usually loses one level of experience. The character’s new experience point total is midway between the minimum needed for his or her new (reduced) level and the minimum needed for the next one. If the character was 1st level at the time of death, he or she loses 2 points of Constitution instead of losing a level. This level loss or Constitution loss cannot be repaired by any mortal means, even the spells wish or miracle. A revived character can regain a lost level by earning XP through further adventuring. A revived character who was 1st level at the time of death can regain lost points of Constitution by improving his or her Constitution score when he or she attains a level that allows an ability score increase.

Preventing Revivification

Enemies can take steps to make it more difficult for a character to be returned from the dead. Keeping the body prevents others from using a single manifestation of reality revision to restore the slain character to life.

A soul cannot be returned to life if it does not wish to be. A soul knows the name, alignment, and patron deity (if any) of the character attempting to revive it and may refuse to return on that basis.

Combining Psionic and Magical Effects

The default rule for the interaction of psionics and magic is simple: Powers interact with spells and spells interact with powers in the same way a spell or normal spell-like ability interacts with another spell or spell-like ability. This is known as psionics–magic transparency.

Psionics–Magic Transparency

Though not explicitly called out in the spell descriptions or magic item descriptions, spells, spell-like abilities, and magic items that could potentially affect psionics do affect psionics.

When the rule about psionics–magic transparency is in effect, it has the following ramifications.
Spell resistance is effective against powers, using the same mechanics. Likewise, power resistance is effective against spells, using the same mechanics as spell resistance. If a creature has one kind of resistance, it is assumed to have the other. (The effects have similar ends despite having been brought about by different means.)

All spells that dispel magic have equal effect against powers of the same level using the same mechanics, and vice versa.

The spell detect magic detects powers, their number, and their strength and location within 3 rounds (though a Psicraft check is necessary to identify the discipline of the psionic aura).
Dead magic areas are also dead psionics areas.

Multiple Effects

Powers or psionic effects usually work as described no matter how many other powers, psionic effects, spells, or magical effects happen to be operating in the same area or on the same recipient. Except in special cases, a power does not affect the way another power or spell operates. Whenever a power has a specific effect on other powers or spells, the power description explains the effect (and vice versa for spells that affect powers). Several other general rules apply when powers, spells, magical effects, or psionic effects operate in the same place.

Stacking Effects

Powers that provide bonuses or penalties on attack rolls, damage rolls, saving throws, and other attributes usually do not stack with themselves. More generally, two bonuses of the same type don’t stack even if they come from different powers, or one from a power and one from a spell. You use whichever bonus gives you the better result.

Different Bonus Types

The bonuses or penalties from two different powers, or a power and a spell, stack if the effects are of different types. A bonus that isn’t named (just a “+2 bonus” rather than a “+2 insight bonus”) stacks with any bonus.

In cases when two or more similar or identical effects are operating in the same area or on the same target, but at different strengths, only the best one applies. If one power or spell is dispelled or its duration runs out, the other power or spell remains in effect (assuming its duration has not yet expired).

Same Effect with Differing Results

The same power or spell can sometimes produce varying effects if applied to the same recipient more than once. The last effect in a series trumps the others. None of the previous spells or powers are actually removed or dispelled, but their effects become irrelevant while the final spell or power in the series lasts.

One Effect Makes Another Irrelevant

Sometimes, a power can render another power irrelevant.
Multiple Mental Control Effects: Sometimes psionic or magical effects that establish mental control render one another irrelevant. Mental controls that don’t remove the recipient’s ability to act usually do not interfere with one another, though one may modify another. If a creature is under the control of two or more creatures, it tends to obey each to the best of its ability, and to the extent of the control each effect allows. If the controlled creature receives conflicting orders simultaneously, the competing controllers must make opposed Charisma checks to determine which one the creature obeys.

Powers and Spells with Opposite Effects

Powers and spells with opposite effects apply normally, with all bonuses, penalties, or changes accruing in the order that they apply. Some powers and spells negate or counter each other. This is a special effect that is noted in a power’s or spell’s description.

Instantaneous Effects

Two or more magical or psionic effects with instantaneous durations work cumulatively when they affect the same object, place, or creature.